xloader | 3dafcb39d7cc251c9a8212a8e745e0d72f2c530bf699a9168a379fa25e36ec38

General

Target

RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Size

417KB
MD5

a30b50f5e2ea1a2d8c6bdf581e97d478
SHA1

9943026649061e28fe7fd626b6d3e1c893131779
SHA256

3dafcb39d7cc251c9a8212a8e745e0d72f2c530bf699a9168a379fa25e36ec38
SHA512

548ca8b3f795c32ff30d4f4810e78c6a0bb2aecf42a4bc56632612b2ab5595d9d4d3fd364b6c9bcca80135f1459f7243edc020a2b61bb3b1bce04d43d79a8088

Score

10^/10

xloader euzn loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

euzn

C2

http://www.heser.net/euzn/

Decoy

235296tyc.com

gold12guide.art

baibuaherb.com

weberwines.tax

chezvitoria.com

aidenb.tech

pitchdeckservice.com

surgeryforfdf.xyz

workunvaccinated.com

hrtaro.com

yourotcs.com

sonimultispecialityclinic.com

consultantadvisors.com

pentesting-consulting.com

dantechs.digital

longshifa.online

taweilai.net

imyusuke.com

cashndashfinancial.com

fasiglimt.quest

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1544-60-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1544-61-0x000000000041D420-mapping.dmp	xloader
behavioral1/memory/1428-71-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

572 cmd.exe

pid	process
572	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

description	pid	process	target process
PID 2000 set thread context of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 1544 set thread context of 1384	1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	Explorer.EXE
PID 1544 set thread context of 1384	1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	Explorer.EXE
PID 1428 set thread context of 1384	1428	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

pid	process
2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe
1428	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

pid	process
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
1428	cmstp.exe
1428	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

description	pid	process
Token: SeDebugPrivilege	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	1544	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	1428	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1384 Explorer.EXE
1384 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1384 Explorer.EXE
1384 Explorer.EXE

pid	process
1384	Explorer.EXE
1384	Explorer.EXE

pid	process
1384	Explorer.EXE
1384	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 2000 wrote to memory of 1528	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1528	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1528	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1528	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2000 wrote to memory of 1544	2000	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1384 wrote to memory of 1428	1384	Explorer.EXE	cmstp.exe
PID 1428 wrote to memory of 572	1428	cmstp.exe	cmd.exe
PID 1428 wrote to memory of 572	1428	cmstp.exe	cmd.exe
PID 1428 wrote to memory of 572	1428	cmstp.exe	cmd.exe
PID 1428 wrote to memory of 572	1428	cmstp.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
2⤵
PID:1528

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1544

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1560

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2032

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2024

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:524

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:320

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:704

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:528

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1428

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
3⤵
- Deletes itself
PID:572

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/572-69-0x0000000000000000-mapping.dmp

Download
memory/1384-66-0x0000000007490000-0x00000000075F8000-memory.dmp

Filesize
1.4MB

Download
memory/1384-74-0x0000000009160000-0x00000000092BD000-memory.dmp

Filesize
1.4MB

Download
memory/1384-64-0x0000000007320000-0x000000000748B000-memory.dmp

Filesize
1.4MB

Download
memory/1428-73-0x0000000000910000-0x00000000009A0000-memory.dmp

Filesize
576KB

Download
memory/1428-70-0x0000000000A80000-0x0000000000A98000-memory.dmp

Filesize
96KB

Download
memory/1428-71-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1428-72-0x0000000002030000-0x0000000002333000-memory.dmp

Filesize
3.0MB

Download
memory/1428-68-0x0000000075C11000-0x0000000075C13000-memory.dmp

Filesize
8KB

Download
memory/1428-67-0x0000000000000000-mapping.dmp

Download
memory/1544-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1544-65-0x0000000000330000-0x0000000000341000-memory.dmp

Filesize
68KB

Download
memory/1544-62-0x0000000000C70000-0x0000000000F73000-memory.dmp

Filesize
3.0MB

Download
memory/1544-63-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/1544-61-0x000000000041D420-mapping.dmp

Download
memory/2000-54-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/2000-59-0x0000000000820000-0x000000000084C000-memory.dmp

Filesize
176KB

Download
memory/2000-58-0x0000000004470000-0x00000000044CC000-memory.dmp

Filesize
368KB

Download
memory/2000-57-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/2000-56-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads